Cargando…

Effects of Spatial Training Paradigms on Auditory Spatial Refinement in Normal-Hearing Listeners: A Comparative Study

BACKGROUND AND OBJECTIVES: This study compared the effectiveness of two spatial training programs using real and virtual sound sources in refining spatial acuity skills in listeners with normal hearing. SUBJECTS AND METHODS: The study was conducted on two groups of 10 participants each; groups I and...

Descripción completa

Detalles Bibliográficos
Autores principales: Nisha, Kavassery Venkateswaran, Kumar, Ajith Uppunda
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Audiological Society and Korean Otological Society 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9271736/
https://www.ncbi.nlm.nih.gov/pubmed/35196448
http://dx.doi.org/10.7874/jao.2021.00451
_version_ 1784744735126061056
author Nisha, Kavassery Venkateswaran
Kumar, Ajith Uppunda
author_facet Nisha, Kavassery Venkateswaran
Kumar, Ajith Uppunda
author_sort Nisha, Kavassery Venkateswaran
collection PubMed
description BACKGROUND AND OBJECTIVES: This study compared the effectiveness of two spatial training programs using real and virtual sound sources in refining spatial acuity skills in listeners with normal hearing. SUBJECTS AND METHODS: The study was conducted on two groups of 10 participants each; groups I and II underwent spatial training using real and virtual sound sources, respectively. The study was conducted in three phases: pre-training, training, and post-training phases. At the pre- and post-training phases, the spatial acuity of the participants was measured using real sound sources through the localization test, and virtual sound sources through the virtual acoustic space identification (VASI) test. The thresholds of interaural time difference (ITD) and interaural level difference (ILD) were also measured. In the training phase, Group I participants underwent localization training using loudspeakers in free field, while participants in Group II were subjected to virtual acoustic space (VAS) training using virtual sound sources from headphones. Both the training methods consisted of 5-8 sessions (20 min each) of systematically presented stimuli graded according to duration and back attenuation (for real source training) or number of VAS locations (for virtual source training). RESULTS: Results of independent t-scores comparing the spatial learning scores (pre vs. post-training) for each measure showed differences in performance between the two groups. Group II performed better than Group I on the VASI test, while the Group I out-performed Group II on the ITD. Both groups improved equally on the localization test and ILD. CONCLUSIONS: Based on the present findings, we recommend the use of VAS training as it has practical implications due to its cost effectiveness, need for minimal equipment, and end user usefulness.
format Online
Article
Text
id pubmed-9271736
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher The Korean Audiological Society and Korean Otological Society
record_format MEDLINE/PubMed
spelling pubmed-92717362022-07-19 Effects of Spatial Training Paradigms on Auditory Spatial Refinement in Normal-Hearing Listeners: A Comparative Study Nisha, Kavassery Venkateswaran Kumar, Ajith Uppunda J Audiol Otol Original Article BACKGROUND AND OBJECTIVES: This study compared the effectiveness of two spatial training programs using real and virtual sound sources in refining spatial acuity skills in listeners with normal hearing. SUBJECTS AND METHODS: The study was conducted on two groups of 10 participants each; groups I and II underwent spatial training using real and virtual sound sources, respectively. The study was conducted in three phases: pre-training, training, and post-training phases. At the pre- and post-training phases, the spatial acuity of the participants was measured using real sound sources through the localization test, and virtual sound sources through the virtual acoustic space identification (VASI) test. The thresholds of interaural time difference (ITD) and interaural level difference (ILD) were also measured. In the training phase, Group I participants underwent localization training using loudspeakers in free field, while participants in Group II were subjected to virtual acoustic space (VAS) training using virtual sound sources from headphones. Both the training methods consisted of 5-8 sessions (20 min each) of systematically presented stimuli graded according to duration and back attenuation (for real source training) or number of VAS locations (for virtual source training). RESULTS: Results of independent t-scores comparing the spatial learning scores (pre vs. post-training) for each measure showed differences in performance between the two groups. Group II performed better than Group I on the VASI test, while the Group I out-performed Group II on the ITD. Both groups improved equally on the localization test and ILD. CONCLUSIONS: Based on the present findings, we recommend the use of VAS training as it has practical implications due to its cost effectiveness, need for minimal equipment, and end user usefulness. The Korean Audiological Society and Korean Otological Society 2022-07 2022-02-24 /pmc/articles/PMC9271736/ /pubmed/35196448 http://dx.doi.org/10.7874/jao.2021.00451 Text en Copyright © 2022 The Korean Audiological Society and Korean Otological Society https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) ) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Nisha, Kavassery Venkateswaran
Kumar, Ajith Uppunda
Effects of Spatial Training Paradigms on Auditory Spatial Refinement in Normal-Hearing Listeners: A Comparative Study
title Effects of Spatial Training Paradigms on Auditory Spatial Refinement in Normal-Hearing Listeners: A Comparative Study
title_full Effects of Spatial Training Paradigms on Auditory Spatial Refinement in Normal-Hearing Listeners: A Comparative Study
title_fullStr Effects of Spatial Training Paradigms on Auditory Spatial Refinement in Normal-Hearing Listeners: A Comparative Study
title_full_unstemmed Effects of Spatial Training Paradigms on Auditory Spatial Refinement in Normal-Hearing Listeners: A Comparative Study
title_short Effects of Spatial Training Paradigms on Auditory Spatial Refinement in Normal-Hearing Listeners: A Comparative Study
title_sort effects of spatial training paradigms on auditory spatial refinement in normal-hearing listeners: a comparative study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9271736/
https://www.ncbi.nlm.nih.gov/pubmed/35196448
http://dx.doi.org/10.7874/jao.2021.00451
work_keys_str_mv AT nishakavasseryvenkateswaran effectsofspatialtrainingparadigmsonauditoryspatialrefinementinnormalhearinglistenersacomparativestudy
AT kumarajithuppunda effectsofspatialtrainingparadigmsonauditoryspatialrefinementinnormalhearinglistenersacomparativestudy